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公开(公告)号：US09769552B2
公开(公告)日：2017-09-19
申请号：US14463596
申请日：2014-08-19
Applicant: Apple Inc.
Inventor： Sylvain J. Choisel , Martin E. Johnson , Afrooz Family
Abstract: An audio capture device generates two microphone beam patterns with different directivity indices. The audio capture device may determine the position of a user relative to the audio capture device based on sounds detected by the separate microphone beam patterns. Accordingly, the audio capture device allows the determination of the position of the user without the complexity and cost of using a dedicated listening device and/or a camera. In particular, the audio capture device does not need to be immediately proximate to the user (e.g., held near the ear of the user) and may be used to immediately provide other services to the user (e.g., audio/video playback, telephony functions, etc.). The position of the user may include the measured distance between the audio capture device and the user, the proximity of the user relative to another device/object, and/or the orientation of the user relative to the audio capture device.
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公开(公告)号：US11812247B2
公开(公告)日：2023-11-07
申请号：US17695238
申请日：2022-03-15
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Afrooz Family , Darius A. Satongar , Jonathan D. Sheaffer , Lance F. Reichert , Peter V. Jupin
CPC classification number: H04R5/04 , H04R5/033 , H04R2420/01 , H04S7/30 , H04S2400/11 , H04S2420/01
Abstract: In a device or method for rendering a sound program for headphones, a location is received for placing the sound program with respect to first and second ear pieces. If the location is between the first ear piece and the second ear piece, the sound program is filtered to produce low-frequency and high-frequency portions. The high-frequency portion is panned according to the location to produce first and second high-frequency signals. The low-frequency portion and the first high-frequency signal are combined to produce a first headphone driver signal to drive the first ear piece. A second headphone driver signal is similarly produced. The sound program may be a stereo sound program. The device or method may also provide for a location that is between the first ear piece and a near-field boundary. Other aspects are also described.
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43.发明授权公开(公告)号：US11726634B2
公开(公告)日：2023-08-15
申请号：US16985128
申请日：2020-08-04
Applicant: Apple Inc.
Inventor： Marcos Alonso Ruiz , Nathan de Vries , David C. Graham , Freddy A. Anzures , Hugo D. Verweij , Afrooz Family , Matthew I. Brown
IPC: G06F3/0482 , G06F3/0488 , G06F3/04886 , G06F3/04883 , G06F3/16
CPC classification number: G06F3/0482 , G06F3/0488 , G06F3/04883 , G06F3/04886 , G06F3/165
Abstract: An electronic device with one or more processors and memory, and in communication with a display and an audio system presents, under control of the electronic device, via the audio system, a first audio output, the first audio output having a volume and an audio property other than volume (e.g., a reverberation time, a low-pass filter cutoff, or a stereo balance). While the audio system presents a first audio output, the device receives an input that corresponds to a request to present a second audio output, and in response, the device concurrently presents, via the audio system, an adjusted version of the first audio output in which the audio property other than volume of the first audio output has been adjusted and the second audio output.
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公开(公告)号：US11265653B2
公开(公告)日：2022-03-01
申请号：US16799440
申请日：2020-02-24
Applicant: Apple Inc.
Inventor： Afrooz Family , Anthony P. Bidmead , Erik L. Wang , Gary P. Geaves , Martin E. Johnson , Matthew I. Brown , Michael B. Howes , Sylvain J. Choisel , Tomlinson M. Holman
IPC: H04R3/12 , H04S7/00 , H04R27/00 , G10L19/008
Abstract: An audio system is described that includes one or more speaker arrays that emit sound corresponding to one or more pieces of sound program content into associated zones within a listening area. Using parameters of the audio system (e.g., locations of the speaker arrays and the audio sources), the zones, the users, the pieces of sound program content, and the listening area, one or more beam pattern attributes may be generated. The beam pattern attributes define a set of beams that are used to generate audio beams for channels of sound program content to be played in each zone. The beam pattern attributes may be updated as changes are detected within the listening environment. By adapting to these changing conditions, the audio system is capable of reproducing sound that accurately represents each piece of sound program content in various zones.
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45.发明申请公开(公告)号：US20210227345A1
公开(公告)日：2021-07-22
申请号：US17224033
申请日：2021-04-06
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Ronald N. Isaac , Afrooz Family
Abstract: A directivity adjustment device that maintains a constant direct-to-reverberant ratio based on the detected location of a listener in relation to the speaker array is described. The directivity adjustment device may include a distance estimator, a directivity compensator, and an array processor. The distance estimator detects the distance between the speaker array and the listener. Based on this detected distance, the directivity compensator calculates a directivity index form a beam produced by the speaker array that maintains a predefined direct-to-reverberant sound energy ratio. The array processor receives the calculated directivity index and processes each channel of a piece of sound program content to produce a set of audio signals that drive one or more of the transducers in the speaker array to generate a beam pattern with the calculated directivity index.
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Patent Agency Ranking
公开(公告)号：US10609484B2
公开(公告)日：2020-03-31
申请号：US15684790
申请日：2017-08-23
Applicant: Apple Inc.
Inventor： Afrooz Family , Anthony P. Bidmead , Erik L. Wang , Gary P. Geaves , Martin E. Johnson , Matthew I. Brown , Michael B. Howes , Sylvain J. Choisel , Tomlinson M. Holman
IPC: H04S7/00 , H04R3/12 , H04R27/00 , G10L19/008
Abstract: An audio system is described that includes one or more speaker arrays that emit sound corresponding to one or more pieces of sound program content into associated zones within a listening area. Using parameters of the audio system (e.g., locations of the speaker arrays and the audio sources), the zones, the users, the pieces of sound program content, and the listening area, one or more beam pattern attributes may be generated. The beam pattern attributes define a set of beams that are used to generate audio beams for channels of sound program content to be played in each zone. The beam pattern attributes may be updated as changes are detected within the listening environment. By adapting to these changing conditions, the audio system is capable of reproducing sound that accurately represents each piece of sound program content in various zones.
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公开(公告)号：US10531196B2
公开(公告)日：2020-01-07
申请号：US15967089
申请日：2018-04-30
Applicant: Apple Inc.
Inventor： Afrooz Family , Gary I. Butcher , Hugo D. Verweij , David C. Graham , Imran A. Chaudhri , Marcos Alonso Ruiz , Christopher J. Stringer
Abstract: A method for adjusting audio being outputted through a beam forming loudspeaker array. Program audio is rendered to drive the loudspeaker array to produce sound beams having i) a main content pattern that is aimed at a listener, superimposed with ii) several diffuse content patterns that are aimed away from the listener. In response to receiving an alert message that refers to alert audio, the portion of the program audio in the main pattern is moved into the diffuse patterns, and the alert audio is rendered to drive the loudspeaker array so that the portion of the program audio in the main pattern is replaced with the alert audio. Other embodiments are also described and claimed.
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公开(公告)号：US10425733B1
公开(公告)日：2019-09-24
申请号：US16147111
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Sylvain J. Choisel , Afrooz Family , Simon K. Porter
IPC: H03G5/02 , H04R3/04 , G10L21/0232 , H04R3/00 , G10L21/0216
Abstract: A microphone equalization system determines an equalization filter which is used to spectrally shape a signal from a microphone. A loudspeaker has an enclosure, a back volume, a driver diaphragm, and a sensor located inside the back volume. An external microphone is located outside the loudspeaker. A processor determines the equalization filter based on comparison of a first signal from an output of the sensor and a second signal from an output of the external microphone both of which are produced while the driver diaphragm produces acoustic pressure waves produced by the driver diaphragm. The processor is to then spectrally shape a third signal from the output of the external microphone that is responsive to further acoustic pressure waves from a source other than the loudspeaker. Other aspects are also described and claimed.
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公开(公告)号：US10278003B2
公开(公告)日：2019-04-30
申请号：US15465540
申请日：2017-03-21
Applicant: Apple Inc.
Inventor： Darius A. Satongar , Afrooz Family , Sylvain J. Choisel , Juha O. Merimaa
Abstract: A binaural sound reproduction system, and methods of using the binaural sound reproduction system to dynamically re-center a frame of reference for a virtual sound source, are described. The binaural sound reproduction system may include a reference device, e.g., a mobile device, having a reference sensor to provide reference orientation data corresponding to a direction of the reference device, and a head-mounted device, e.g., headphones, having a device sensor to provide device orientation data corresponding to a direction of the head-mounted device. The system may use the reference orientation data to determine whether the head-mounted device is being used in a static or dynamic use case, and may adjust an audio output to render the virtual sound source in an adjusted source direction based on the determined use case. Other embodiments are also described and claimed.
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50.发明申请公开(公告)号：US20190104366A1
公开(公告)日：2019-04-04
申请号：US16113399
申请日：2018-08-27
Applicant: Apple Inc.
Inventor： Martin E. Johnson , Afrooz Family , Darius A. Satongar , Jonathan D. Sheaffer , Lance F. Reichert , Peter V. Jupin
Abstract: In a device or method for rendering a sound program for headphones, a location is received for placing the sound program with respect to first and second ear pieces. If the location is between the first ear piece and the second ear piece, the sound program is filtered to produce low-frequency and high-frequency portions. The high-frequency portion is panned according to the location to produce first and second high-frequency signals. The low-frequency portion and the first high-frequency signal are combined to produce a first headphone driver signal to drive the first ear piece. A second headphone driver signal is similarly produced. The sound program may be a stereo sound program. The device or method may also provide for a location that is between the first ear piece and a near-field boundary. Other aspects are also described.
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